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Dmitry_Shevchenko [17]
3 years ago
9

If 5 + 6i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?​

Mathematics
2 answers:
shusha [124]3 years ago
7 0

The answer is (B).

Took the review test and passed.

kolezko [41]3 years ago
6 0

Answer:

5-6i

Step-by-step explanation:

The complex conjugate root theorem states that if (a+bi) is a root, then (a-bi) must also be a root and vice versa.

We know that (5+6i) is a root.

Then by the above theorem, (5-6i) must also be a root.

Hence, our solution is (5-6i).

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Please help!! I'm desprate
Orlov [11]

Answer:

Step-by-step explanation:

Going clockwise rotates the quadrilateral to the right.

5 0
3 years ago
The boat travels x miles per hour from one island to another island in 2.5 hours. The boat travels 5 miles per hour faster on th
notka56 [123]
The speed to the island is x. The speed to return is x+5.

The distance is the same so, 2.5 multiplied by x = 2×(x+5).

It took 2.5 hrs to get there and 2 hrs to return. Now all we have to do is solve.

 2.5*x = 2x + 10

 .5x = 10
x=20

 Therefore, the distance between islands is 2.5 × 20 = 50 miles.

hope this helps!

6 0
3 years ago
This is hard for me I need help or my mom is going to be
Harrizon [31]
the answer should be letter A

the difference of 3.4 and 1.25 = 2.15

Now you know that there will be 2 whole blocks and .15 of a block

.15 is equal to 3/20 which is equal to 15/100.

So you will have 2 whole blocks and 15/100 of a blocks. So the answer is A
4 0
3 years ago
Write in slope form 2y = 24 ​
AlekseyPX

Answer:

  y  = 12

Step-by-step explanation:

The equation of the expression is given as;

              2y  = 24

We are to write in slope form';

    In slope form, an equation is expressed as;

             y = mx + c

where y and x are the intercept

               m is the slope

                c is the intercept

Now to write 2y = 24 in intercept form, we have;

                 2y  = 24

  divide both sides by 2;

                y  = 12

3 0
2 years ago
A credit card had an APR of 17.84% all of last year and compounded interest daily. What was the credit card's effective interest
Andreas93 [3]
The solution to the problem is as follows:

<span>((1+.1784/365)^365) - 1 =.1953=19.53%
</span>
Therefore, best and most correct answer among the choices provided by your question is the fourth choice or letter D. 19.53%

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
3 0
3 years ago
Read 2 more answers
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